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<br />'I . . <br /> <br />., . '" . <br /> <br />4' <br /> <br /> <br />DEPARTMENT OF THE ARMY <br />CORPS OF ENGINEERS. OMAHA DISTRICT <br />, 015 SOUTH 1 liTH STIUET <br />OMAH", NEBRASKA 611102-115'B <br /> <br />August 4, 2003 <br /> <br />RIl:PLV TO <br />ATTENTION OF: <br /> <br />District Engineer <br /> <br />Mr. Larry Lang <br />Colorado Water Conservation Board <br />Uepartment of Natural Resources <br />13 I 3 Sherman Street, .Room 721 <br />Denver, Colorado 80203 <br /> <br />Dear Mr. Lang: <br /> <br />This is in reply to your July 15,2003 letter regarding the Cherry Creek Probable <br />Maximum Precipitation (PMP) Technical Review (copy enclosed). <br /> <br />I appreciate the Omaha District having the opportunity to observe the Cherry <br />Creek PMP Technical Review process. The combined effons of the Colorado Water <br />Conservation Board (CWCB) and Cherry Creek PMP Advisory Committee (Working <br />Group) have clarified the issues related to the Cherry Creek PMP. <br /> <br />. <br /> <br />The Corps' response 10 the proposed requests/options provided in your letter arc. <br />as follows: <br /> <br />Request No, ] - Can the Corps use t11e A W A PMP values and tht: Corps' 1995 <br />PMF model, the Corps will compute the PMF storage pool volume and compare the <br />value to the existing reservoir space and Corps' 1995 storage volume that presently has a <br />requirement for an additional} 00,000 Acre-Foot of storage space to the existing reservoir <br />pool? <br /> <br />Response No. 1 - Yes, the Corps will perform the tas~ outlined in Request 1. <br /> <br />Request No.2 - Should the Corps not have the resources to perfonn Request No. <br />1. can the Corps provide its 1995 PMF Model to the eWeB so a non-federal PMF <br />volume determination can be. computed using the Corps procedures and A W A's PMP <br />input par'dl11eti:rrs? <br /> <br />Response No.2 - Given the Corps is committed to accomplishing your first <br />request, the second request is no longer applicable. <br /> <br />. <br /> <br />Request No.3 - Is there an opportunity to revise the Corps' dam safety <br />operational requirements regarding storage and spill schedules for the Cheny Creek Dam <br />and Reservoir? <br />